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Component    Wt. % 

C 0.08 - 0.13 
Fe 99.18 - 99.62 
Mn 0.3 - 0.6 
P Max 0.04 
S Max 0.05 


Material Notes:
Used widely in low strength applications. Good formability, fair machinability, can be hardened by cyaniding. Suitable for magnet core applications

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Physical Properties Metric English Comments


Density 7.87 g/cc 0.284 lb/in³ 

Mechanical Properties


Hardness, Brinell 105 105 
Hardness, Knoop 123 123  Converted from Brinell hardness.
Hardness, Rockwell B 60 60  Converted from Brinell hardness.
Hardness, Vickers 108 108  Converted from Brinell hardness.
Tensile Strength, Ultimate 365 MPa 52900 psi 
Tensile Strength, Yield 305 MPa 44200 psi 
Elongation at Break 20 % 20 %  In 50 mm
Reduction of Area 40 % 40 % 
Modulus of Elasticity 205 GPa 29700 ksi  Typical for steel
Bulk Modulus 140 GPa 20300 ksi  Typical for steel
Poisson's Ratio 0.29 0.29  Typical For Steel
Machinability 55 % 55 %  Based on AISI 1212 steel. as 100% machinability. The machinability of Group I bar, rod, and wire products can be improved by cold drawing.
Shear Modulus 80 GPa 11600 ksi  Typical for steel

Electrical Properties


Electrical Resistivity 1.43e-005 ohm-cm 1.43e-005 ohm-cm  condition unknown

Thermal Properties


CTE, linear 20°C 12.2 µm/m-°C 6.78 µin/in-°F  0-100ºC
CTE, linear 250°C 13.5 µm/m-°C 7.5 µin/in-°F  0-300°C (68-570°F)
CTE, linear 500°C 14.2 µm/m-°C 7.89 µin/in-°F  0-500°C (68-930°F)
Specific Heat Capacity 0.448 J/g-°C 0.107 BTU/lb-°F  condition unknown; 50-100°C (122-212°F)
Specific Heat Capacity at Elevated Temperature 0.498 J/g-°C 0.119 BTU/lb-°F  condition unknown; 150-200°C (302-390°F)
Specific Heat Capacity at Elevated Temperature 0.519 J/g-°C 0.124 BTU/lb-°F  condition unknown; 200-250°C (390-480°F)
Specific Heat Capacity at Elevated Temperature 0.536 J/g-°C 0.128 BTU/lb-°F  condition unknown; 250-300°C (480-570°F)
Specific Heat Capacity at Elevated Temperature 0.565 J/g-°C 0.135 BTU/lb-°F  condition unknown; 300-350°C (570-660°F)
Specific Heat Capacity at Elevated Temperature 0.59 J/g-°C 0.141 BTU/lb-°F  condition unknown; 350-400°C (660-750°F)
Specific Heat Capacity at Elevated Temperature 0.649 J/g-°C 0.155 BTU/lb-°F  condition unknown; 400-450°C (750-930°F)
Specific Heat Capacity at Elevated Temperature 0.729 J/g-°C 0.174 BTU/lb-°F  condition unknown; 550-600°C (1020-1110°F)
Specific Heat Capacity at Elevated Temperature 0.825 J/g-°C 0.197 BTU/lb-°F  condition unknown; 650-700°C (1200-1290°F)
Thermal Conductivity 49.8 W/m-K 346 BTU-in/hr-ft²-°F  Typical steel

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